Attachment for milling-machines.



No. 800,596. PATENTED SEPT. 26, 1905. W. SALMON. ATTACHMENT FOR MILLING MACHINES.

APPLICATION FILED SEPT. 18, 1903.

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No. 800,596. PATENTED SEPT. 20, 1905.

w. SALMON. ATTACHMENT FOR MILLING MACHINES.

APPLICATION FILED SEPT. 18, 1903.

3 SHEETS-8HBET 2.

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No. 800,596. v PATENTED SEPT. 26, 1905.

W. SALMON. ATTACHMENT FOR MILLING MACHINES.

APPLIGATION TILED SEPT. 18, 1903.

3 SHEETS-SHEET 3.

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UNITED STATES PATENT OFFICE.

ATTACHMENT FOR MILLING-MACHINES.

Specification of Letters Patent.

Patented Sept. 26, 1905).

Application filed September 18,1903. Serial No. 173.693.

1'0 LZZ whom, it may concern:

Be it known that I, WILFRIED SALMON, a citizen of the United States, residing atBrainerd, in the county of Crow Wing and State of Minnesota, have invented certain new and useful Improvements in Attachments for Milling- Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to attachments for milling-machines, and has for its object to provide an attachment by means of which quadrants, racks, large gear cutting, sawing, links, and camwork can be easily, speedily, and accurately milled.

l/Vith this object in view my invention consists in the novel construction and arrangement of parts of my milling-machine attachment; and my invention consists particularly in the combination of parts which will be first fully described and afterward specifically pointed out in the appended claim.

Referring to the accompanying drawings, Figure l is a front elevation of my invention, showing attachment and position of the same for milling quadrants, racks, large gear cutting, and sawing. Fig. 2 is aview of the same partly in side elevation and partly in section. Fig. 3 is a plan of adjustable workrack. Fig. 4 is an elevation of the same. Fig. 5 is a plan of one of the milling-cutters. Fig. 6 is an edge view of one of the spacingcollars located between the cutters. Fig. 7 is an edge view of the cutter. Fig. 8 is an edge view of the washer for cutter.

Like numerals of reference indicate the same parts throughout the several figures.

The adjustable cutter extension 1 is securely fastened upon the upper arbor of the milling-machine, as shown in Figs. 1 and 2.

Carried by the said adjustable cutter extension 1 is the arbor 2, held in position by the adjustable centers 3 and 4. The millingcutters 5 are carried on said arbor 2, the spacing-collars 6 being interposed between said cutters, Fig. 1, and the washers 7 on the outside of the cutters,against which the jamnuts 8 bear, which jam-nuts are threaded on the arbor 2. A pulley 9 is secured on said arbor and is belted to a pulley 10, from whence power is transmitted to the cutters. An angle-plate 11, Fig. 2, against which the work rests,is suitably secured below said. outters, and an adjustable work-rack 13 (shown in detail in Figs. 3 and 4) is located forward of said angle-plate, as shown in Fig. 2. Said adjustable work-rack 13 is capable of being adjusted to any radii of the work, as shown, for instance, in Fig. l, and said rack is composed of a series of rollers 14, connected by links 15 and carried on the adjustable base 16, which is composed of a slotted member 17 and a perforated member 18, adjustably secured together by bolts 19, Figs. 3 and 4. Forward of said adjustable work-rack is an angle-plate 20, Figs. 1 and 2, which is provided with a slot 21 in the vertical wall thereof, within which is secured a verticallyslidable box 22, Figs. 1 and 2, which carries the work-clamping bolt 23. The thumb-screw 24, threading into its nut 25, raises or lowers the said box 22 and clamp-bolt 23. The said angle-iron is secured to a bed-plate 26 by bolts 27, and 28 and 29 indicate two L-shaped bolts provided with slots 30 and 31 in the bases thereof, through which bolts 32 and 32 pass to secure the same to the said angleplate. 33 indicates an index-finger adapted to be carried on said L-bolts 28 and 29 and acting as a guide from one tooth to another. Said index-finger is adjustable laterally by means of slotted construction of the L-shaped bolts 28 and 29 and is adjustable vertically by means of the nuts 34 on said bolts and the springs 35 and 36, said spring 35 being incased in a cage 37, which limits the compression of said spring and acts to hold the said indexfinger firmly and rigidly when the upper nut 34 has been threaded down upon the indexfinger 33, as shown in Fig. 2.

In operation the work is placed upon the work-rack, which is adjusted to conform to the arc of the work, and theclamping-bolt 23 is adjusted vertically by means of the thumb-screw 24, so as to be at a height proper to clamp the work against the angle-plate 11. The clamping-bolt is then revolved until it rigidly clamps the work, as shown in Fig. 2. The cutter extension 1 is then adjusted by means of the bolts 38, Fig. 2, so that the cutters may be raised or lowered, according to the character of the work and the depth of the teeth to be cut. The power is then applied to the arbor 2, which starts thecutters revolving, and the work is moved out toward the cutters, which cut into the same, as shown in Fig. 2. \Vhen the cutters have passed through the work, said work is moved, the index-linger 33 acting as a guide from one tooth to another tooth. The work is again clamped and passed under the cutters, which operation is carried on until the work is finished.

WVhile I have shown and described that construction which is best adapted to the Work to be done, I do not wish to be understood as limiting myself thereto, as various changes could be made therein which would fall within the limit and scope of my invention, and 1 consider myself clearly entitled to all such changes and modifications.

Vhat 1 claim as my invention, and desire to WILFRIED SALMON.

\Vitnesses:

S. F. ALDERMAN, W. H. MANToR. 

